> That's assuming you're only drinking tea when you want the heating on though. Yeah, I meant using in the present tense, sorry (ie. The system is keeping the

> That's assuming you're only drinking tea when you want the heating on though. Yeah, I meant using in the present tense, sorry (ie. The system is keeping the room above ambient even if it's presently idle due to the thermostat). If you're cooling the space, it's much worse. > Plus you seemed to have gone on the boilers rather than kettles. The boiler would be the gas central heating system. The kettle is making the tea.